Hopper-bottom-car door.



A. CAMPBELL. HOPPER BOTTOM OAR DOOR. APPLICATION FILED JULY 12, 1912.

Patented! July 22, 1913.

WIITNESSIEEJ omnon.

aorta canriannr, or CHIGAGQ, ILLINOIS, assronon ro nnrnarnrsn RAILWAYEQUIPMENT COMPANY, .13 @HIGAGQ, IIILINQIS.

Specification oi Letters Patent.

' Patented July 22, 1913.

original appiicatim v filed April 5; 191-2, Serial 110. team. Dividedand this application filed July 12, 121%. {Manure-5 08,9 32;

To all whom it may concern:

Be it known that l, Anerrn Carrrnnnn, a citizen of the United ita-tes,residing in Chicago, in the county of tlook and State of lllinois, haveinvented a new and useful improvement in Hopper- Bottom- Car Doors, ofwhich the following is a specification.

This application is a division of my application, Serial No. 688,590,filed April 5, 1912.

This invention relates to improvements in hopper bottom car doors andoperating mechanism therefor.

. An object of the invention is to provide means for forming agrain-tight closure or joint between the hopper doors and they edges ofthe hopper chutes.

My invention furthermore consists in the improvements in the parts anddevices and in the novel combinations of parts and devices. hereinshown, described or claimed.

in the drawings forming a part of this specification, Figure 1 is a sideview of a portion of a hopper bottom car, partly in section, to moreclearly show the construction embodying my improvements. Fig. 2 is apartial, transverse section of a portion of a hopper bottom carembodying my improvements, and Fig. 3 is a detail view showing the dooroperating mechanism detached.

In said drawings, 10 denotes the chutes, each of which is provided witha casting 11 extending around the side and bottom edges of the openingin the chute, each of these members 11 being provided with a continuousgroove 12, a projecting rib 13 and an outwardly extending flat flange14.

Pivotally mounted on the under sides of the transverse hopper sheets 15of the car are hopper bottom doors 16, said doors being mounted so as toswing oppositely, as clearly shown in Fig. 1, and being each providedwith a member 17 adapted to coiiperate with the member 11 on thecorresponding chute, each of said members 17 extend ing around the sideand bottom edges of the door and having a groove 18, in which is adaptedto be seated the projection or rib 13, a rib or projection 19 which fitsin the groove 12 of the corresponding member 11, and provided also witha flange 20 cooperating with its corresponding flange 1d,

the flanges 1t and 20 being disposed at an angle to the plane of thedoors 16, whereby the same are wedge acting as the doors are closed.

In the structure described, it will be apparent that a tight joint isformed between each door and its corresponding chute,

. which will prevent the leakage of grain or similar materials when thecar is in motion, it being practically impossible for the grain to passaround the ribs 13 and 19.

-Each hopper sheet-15 is provided with a depending flange or lip 21extending over the upper edge of the door to prevent leakage at thispoint.

The doors 16 are arranged in pairs, one on each side of the longitudinalcenter sills of the car, and each pair is adapted to be operatedsimultaneously by means of a transversely extending bar 22 securedthereto, and each set of pairs of doors is adapted to be operatedsimultaneously by the following mechanism: An operating shaft 23 isarranged transversely of the car. and is mounted in suitable bracing andsecured to the shaft 23 between the center sills 24 of the car is acrank arm 25, having pivotally connected thereto at its outer end a link26,

the latter being pivotally mounted on a pivot pin 27, having mountedthereon toggle members 28, each of the toggle members 28 having an eyebolt 29 adjustably mounted in its outer end, each eye bolt beingpivotally secured to the cross or connecting bar 22 by a pivot pin 30.In order to adjust the closing of either door at any time, thecorresponding pin or pivot 30 is removed and the eye bolt 29 adjusted inits toggle member 28 in or out, as desired, after which the pivot pin 30is replaced.

Secured to the center sills 24 are a pair of downwardly extending guidemembers 31, each being provided with a slot 32 in which reciprocates theextended ends of the pivot pin 27.

From the foregoing description, it will be seen that the means forpreventing leaks of grain and similar material comprise few partscheaply manufactured, and are so arranged that the tighter the doors areclosed,

the tighter will be the fit between the flanges of the members securedto the edges of the doors and the hopper chutes.

' and bottom" edges 0 chute in the bottom thereof '-I claim L. A hopperbottom car adapted to carry grain and similar material, and having aprovided with an opening, a door hinged at its upper edge adjacent saidopening and adapted to close the same, and operating mechanism for saiddoor, said door and chute having cooperatmg grain leak preventinmembers, each of said members being provided with a groove, said membersextendgng around the sides and secured to the doors and chutes, each ofsaid grooved members having a rib adapted to be seated in the groove ofthe other, and each having also an outer flat flange.

ARGYLE CAMPBELL.

Witnesses: A. E. ZIMMER, W. L. GUNNISON.

